package com.my;

import javax.servlet.*;
import java.io.IOException;

/**
 * Created by YJH on 2017/7/12 13:24.
 */
public class HelloFilter implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        System.out.println("HelloFilter--->init()");
    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        System.out.println("HelloFilter--->doFilter()");

        //放行
        filterChain.doFilter(servletRequest, servletResponse);
    }

    @Override
    public void destroy() {
        System.out.println("HelloFilter--->destroy()");
    }
}
